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As an effective alternative to industrial sight glasses, the VLI2500 and VLIT2500 offer unparalleled quality and accuracy of measurement in today's market.

The VLI and VLIT are comprised of 316 stainless steel and are extremely resilient throughout their service lifetime. Units can be equipped with features that provide continuous electronic level output or fixed actuation points to increase its level sensing capabilities. VLI models require no power to operate its basic functions which makes it an ideal cost effective product for liquid level measurement inside a closed system.

Unsurpassed Flag Rail Reliability

The VLI and VLIT’s mono-directional flag rail system prevents over-rotation through its unique interlocking design. Each magnetic flag features a high-contrast display of solid color sides that visually track the liquid level from up to 100 feet (30 meters) away. In addition, the entire flag rail can be vertically adjusted to refine the actuation point of the internal float.

Custom Built For Your Application

Each unit is engineered at SWI’s facility to suit customer application requirements.VLI2500 models offer a single isolated pressure chamber, while the VLIT2500 offers dual chambers for indicator integration. Choose from a variety of top, bottom and side connections. Additional custom options include flag colors, scale units and scale materials.